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Finding the Fourth Proportional to 583,628.22, 805,406.93 and 315,356.22

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Solution

The fourth proportional to 583,628.22, 805,406.93 and 315,356.22 is: 435,191.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,628.22 : 805,406.93 = 315,356.22 : x
  2. Step 2: Convert to fraction form
    583,628.22/805,406.93 = 315,356.22/x
  3. Step 3: Cross multiply
    583,628.22x = 805,406.93 × 315,356.22
  4. Step 4: Simplify right side
    583,628.22x = 253,990,084,612.41
  5. Step 5: Solve for x
    x = 253,990,084,612.41/583,628.22
  6. Step 6: Final answer
    x = 435,191.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.